Optimize release with redirection of user equipment back to fifth generation (5g) network after fallback
AssigneeT-Mobile USA, Inc.
InventorSrinivasan Sridharan
Life of this patent
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Abstract
Systems, devices, and techniques described herein relate to returning to a cellular network (e.g., a 5th generation (5G) Radio Access Network (RAN)) after fallback to a different cellular network (e.g., a 4th generation (4G) RAN). In some examples, a first network, such as a 5G RAN may not be capable of providing a requested service to a User Equipment (UE), such as a voice call. To provide the requested service, the UE may be temporarily connected to a second network, such as a 4G LTE network. Instead of waiting to return to the 5G network when the UE becomes idle, the UE is returned to the 5G network upon the call ending and the UE having 5G coverage.
Claims20
A system, comprising:
- a memory;
- and
- one or more components stored in the memory and executable by one or more processors to perform operations comprising:
- establishing, for a User Equipment (UE), a communication session on a Fifth Generation (5G) radio access network (RAN);
- determining to fallback from the 5G RAN to a second RAN to support a requested service, wherein the second RAN is a previous generation RAN;
- releasing the communication session on the 5G RAN;
- establishing, for the UE, a second communication session on the second RAN;
- determining that the requested service has ended;
- within a predetermined time after the requested service has ended, determining whether the UE is within a coverage area of the 5G RAN;
- releasing the second communication session based at least in part on the coverage area;
- and
- establishing a third communication session on the 5G RAN.
A method comprising:
- determining to fallback from a first radio access network (RAN) to a second RAN to support a requested service of a user equipment (UE), wherein the second RAN is a previous generation RAN;
- establishing, for the UE, a communication session on the second RAN to provide the requested service;
- determining that the requested service has ended;
- within a predetermined time after the requested service has ended, determining whether the UE is within a coverage area of the first RAN;
- releasing the communication session based at least in part on the coverage area;
- and
- establishing a second communication session on the first RAN.
A device comprising:
- at least one processor;
- and
- at least one memory storing instructions, the instructions being executable by the at least one processor to perform operations comprising:
- determining to fallback from a first radio access network (RAN) to a second RAN to support a requested service of the device, wherein the second RAN is a previous generation RAN;
- establishing a communication session on the second RAN to provide the requested service;
- determining that the requested service has ended;
- within a predetermined time after the requested service has ended, determining that the device is within a coverage area of the first RAN;
- releasing the communication session based at least in part on the coverage area;
- and
- establishing a second communication session on the first RAN.
Dependencies are inferred from the claim text.